We are currently developing a BLE based proximity tracking device which connects to an Android app and helps user track/find their belongings. It is similar to a Tile or TrackR tracking device but with higher working range and some unique features to enhance user experience. We are using a TI chipset of CC2541 with extender and on-board antenna developed by RadioLand China (Model CC2541PA1). Our board design is done with a firmware in place and an Android app that talks to the device. We have two issues with the app that points to issues in our firmware + app that we need help fixing. These two issues are:
- Proximity compass: Use the RSSI, BMA 250 sensor and algorithms to guide the user to the lost item where the tracker is placed. This feature guides the user to the tracker like a compass (left or right, straight or back etc....like directionally more than regular bluetooth tracking of just notifying radius between devices.
- The distance calculator between the tracker and app/phone needs to be optimized for accuracy
- There should be multiple devices that a user can track so they can put the trackers in multiple things around them
We are currently in an urgency to fix the issues and finish the prototype for a demo. Once we demo the prototype, we will have to go into a turning the rigid PCB to a flexible PCB with onboard battery and do production work. So the project will contain a lot of PCB design, firmware design and app work before releasing it in the market. Right now, i am just interested in finishing the prototype for our stakeholders before moving to the next stage.
I request interested parties to have prior experience in the exact same application or close thereof so we can start troubleshooting quickly. Also interested candidates should be prompt in response and providing feedback. We have several prototypes that we can test but the software development in the interest of time will have to be remote. We can consider shipping a device to you if that accelerates the process.